Alert archive / Nebraska / Tornado Warnings in 1999

Tornado Warning 9, NWS North Platte, NE

June 3, 1999Cherry County, Nebraska

NWS North Platte, NE issued this tornado warning at Jun 3, 1999, 10:37 PM MDT for Cherry County, Nebraska. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 3, 1999, 10:37 PM MDT (04:37 UTC)
Expired
Jun 3, 1999, 11:40 PM MDT
In force
63 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Cherry County, NE

The radar

The North Platte radar (KLNX), 79 km from the middle of the area, began a volume at 04:41 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 3, 10:00 PM MDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 4.6 hours before the alert went out and 163 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 00:00Z on 1999-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2027 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 00:00Z on 1999-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 160 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2027 J/kg
Mixed-layer CIN
-76 J/kg
Mixed-layer LCL
1167 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
160 m²/s²
0-3 km storm-relative helicity
202 m²/s²
Significant tornado parameter
1.2
Supercell composite
12.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

389 
WFUS1 KLBF 040437 RRA
TORLBF
NEC031-040540-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1137 PM CDT (1037 PM MDT) THU JUN 3 1999

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTH CENTRAL CHERRY COUNTY IN NORTH CENTRAL NEBRASKA

* UNTIL 1240 AM CDT

* AT 1135 PM CDT... NORTH PLATTE DOPPLER RADAR INDICATED A TORNADO
  39 MILES SOUTHWEST OF VALENTINE OR 16 MILES WEST OF MERRITT
  RESERVOIR... MOVING NORTHEAST AT 10 MPH.

THE TORNADO IS EXPECTED TO REMAIN IN RURAL AREAS WEST OF MERRITT
RESERVOIR.

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR

DJB

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 3, 6:26 PM MDTSevere Thunderstorm WarningLBFSheridan49 min
Jun 3, 6:43 PM MDTSevere Thunderstorm WarningLBFCherry47 min
Jun 3, 6:58 PM MDTTornado WarningLBFCherry47 min
Jun 3, 7:17 PM MDTSevere Thunderstorm WarningLBFSheridan33 min
Jun 3, 7:47 PM MDTTornado WarningLBFCherry48 min
Jun 3, 8:28 PM MDTSevere Thunderstorm WarningLBFCuster62 min
Jun 3, 8:37 PM MDTTornado WarningLBFCherry48 min
Jun 3, 8:58 PM MDTSevere Thunderstorm WarningLBFGarfield32 min
Jun 3, 9:27 PM MDTTornado WarningLBFCherry33 min
Jun 3, 9:31 PM MDTSevere Thunderstorm WarningLBFCuster49 min
Jun 3, 10:05 PM MDTTornado WarningLBFCherry30 min
Jun 3, 10:16 PM MDTSevere Thunderstorm WarningLBFWheeler49 min
Jun 3, 10:26 PM MDTTornado WarningLBFGarfield49 min
Jun 3, 10:38 PM MDTTornado WarningLBFWheeler47 min
Jun 3, 11:20 PM MDTTornado WarningLBFGarfield50 min
Jun 3, 11:30 PM MDTTornado WarningLBFWheeler45 min
Jun 3, 11:40 PM MDTTornado WarningLBFCherry65 min
Jun 4, 12:18 AM MDTSevere Thunderstorm WarningLBFWheeler47 min
Jun 4, 12:47 AM MDTTornado WarningLBFCherry63 min
Jun 4, 5:07 PM MDTSevere Thunderstorm WarningLBFPerkins63 min
Jun 4, 5:18 PM MDTSevere Thunderstorm WarningLBFKeith47 min
Jun 4, 5:50 PM MDTSevere Thunderstorm WarningLBFArthur, Garden, Keith65 min

Nearby

Tornado Warnings in Nebraska, 1999Every tornado warning in 1999Tornadoes in 1999

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.